Bendable device with display in movable connection with body

ABSTRACT

A bendable device is provided. The device comprises: a body comprising a bending region and a flexible display stack comprising at least one active layer and a supporting layer positioned on the bottom of the flexible display stack. The supporting layer of the flexible display stack comprises one or more fastening areas; the body comprises one or more fastening components; and one or more fastening components of the body are configured to be operable in a movable connection with one or more fastening areas of the flexible display stack.

BACKGROUND

Technology of bendable multilayer electronic devices is becomingincreasingly relevant in flexible displays and touch surfaces. Manycustomer electronics manufacturers are applying the bendable technologyto handheld devices, laptops, wearable devices, and other consumerelectronics. Integration of bendable or flexible layers with the rest ofthe device has an influence on the stresses that appears between thedifferent layers, and on the possibility of replacement of individualelements.

SUMMARY

The following presents a simplified summary of the disclosure in orderto provide a basic understanding to the reader. This summary is not anextensive overview of the disclosure and it does not identifykey/critical elements or delineate the scope of the specification. Itssole purpose is to present a selection of concepts disclosed herein in asimplified form as a prelude to the more detailed description that ispresented later.

A device and methods are presented. The electronic device comprises abody and a flexible display stack. The display stack and the body are ina movable connection via fastening areas and fastening components. Inembodiments, the fastening areas and components may include studs andgrooves and/or magnets. The methods disclosed relate to the way thedisplay stack is fixed to the body, via magnets brought in proximity toeach other and via studs locking into grooves.

Many of the attendant features will be more readily appreciated as thesame becomes better understood by reference to the following detaileddescription considered in connection with the accompanying drawings.

DESCRIPTION OF THE DRAWINGS

The present description will be better understood from the followingdetailed description read in light of the accompanying drawings,wherein:

FIG. 1 is a schematic side view of a bendable device with a display;

FIG. 2 is a schematic side view of a device according to an embodiment;

FIG. 3A is an angled view of a supporting layer comprising a metal studaccording to an embodiment;

FIG. 3B is a side view of a supporting layer comprising a metal studaccording to an embodiment;

FIG. 3C is a schematic illustration of a stud inserted into a groove;

FIG. 3D is a side view of a supporting layer comprising a magnetic sheetelement according to an embodiment;

FIG. 3E is a side view of a supporting layer comprising a magneticelement with a magnetic core according to an embodiment;

FIG. 4 is an angled view of a display stack according to an embodiment;

FIG. 5A is an angled view of a body and supporting layer with fasteningcomponents and areas according to an embodiment;

FIG. 5B is an angled view of a body comprising magnetic elements ofvarious shapes according to an embodiment;

FIG. 6 is a flow chart of a method according to an embodiment;

FIG. 7 is a flow chart of a method according to an alternativeembodiment.

Like reference numerals are used to designate like parts in theaccompanying drawings.

DETAILED DESCRIPTION

The detailed description provided below in connection with the appendeddrawings is intended as a description of the present embodiments and isnot intended to represent the only forms in which the present inventionmay be constructed or utilized. However, the same or equivalentfunctions and sequences may be accomplished by different embodiments.

The embodiments described below are not limited to implementations whichsolve any or all of the disadvantages of known devices and covers.Although the present examples are described and illustrated herein asbeing implemented with a stack of few layers connected to a body, thedevices described are provided as an example and not a limitation. Asthose skilled in the art will appreciate, the presented embodiments aresuitable for application in a variety of bendable devices comprisingmultiple stacks of layers, and the individual elements can be aschematic representation of various parts of a device, such as a displayor a touch screen. These parts may comprise a plurality of differentlayers and other elements in between the body and the display stack.

In bendable or flexible electronic devices, such as FOLED (FlexibleOrganic Light Emitting Diode) devices, the display part of the devicehas to be attached to the main body in a way that does not prevent orresist bending of the device.

FIG. 1 is a schematic illustration of a bendable device 10 whichcomprises a display stack 11 and a body 12. The device 10 may be, but isnot limited to, a bendable electronic device, a bendable handheldelectronic device or a foldable electronic device. Structural featuresof devices according to embodiments are described in more detail withreference to FIGS. 2-5B; and the side view of FIG. 1 serves toillustrate the mechanism of relative movement that occurs when thedevice 10 is bent. When a device 10 is bent or folded, and the displaystack 11 is movably fixed to the body 12, movement of the display stack11 occurs relative to the body 12 similar to relative movement of pagesof a stack of papers when bent. This movement occurs due to differentneutral axes for the stack 11 and body 12. A neutral axis of bending isthe axis where no compression or extension occurs, and it is usuallylies inside the structure that is being bent. Unless the stack 11 andthe body 12 are in a rigid connection along the whole surface, they bendas two individual structures. The first neutral axis 111 of the flexibledisplay stack normally lies above the second neutral axis 112 of thebody 12, which leads to their relative movement. This relative movementis present in embodiments described below which provide a movableconnection between at least parts of the display stack 11 and the body12. The approximate neutral axis 111 and possible bending direction areshown in FIG. 2 by dashed lines and arrows.

FIG. 2 shows a bendable device 10 according to an embodiment. The device10 may be, but is not limited to, a bendable electronic device, abendable handheld electronic device or a foldable electronic device.This Figure is a side cross-section view of the device 10. The device 10comprises a display stack 21 which comprises at least one active layer212 and a supporting layer 211 on the bottom. The display stack 21 mayalso comprise a window layer 210 on the top. This provides protection ofthe other layers and the internal parts of the device 10. The supportinglayer 211 may comprise stainless steel or other metal. The supportinglayer 211 may also have a bending region and comprise rigid material, asdiscussed in more detail below.

The device 10 further comprises and a body portion 22 with a bendingregion 23. The bending region 23 may be an extendable hinge, a hingewith rotating elements or any other hinge. A particular type of hingemay be appropriate for the desired type of bending of the device 10.Alternatively, the bending region 23 may be an elastic component, forexample a rubber component. The bending region 23 may have any width orshape. In an embodiment, the region 23 may span across the body 22 ofthe device 10. The body 22 may also comprise more than one extendableregion 23, for example if the device 10 is bendable about more than oneaxis.

The supporting layer 211 comprises one or more fastening areas 221, andthe body 22 comprises one or more fastening components 222. Thefastening components 222 are configured to be operable in a movableconnection with the fastening areas 221. They are shown on FIG. 2 onlyschematically and may have any appropriate shape, size and properties toprovide a movable connection. The term “movable connection” hereinrefers to a connection which allows free movement of connected elementsin at least one direction within a limited range.

The above embodiments can provide a technical effect of easy bending dueto movable connection points, while preventing detachment of the displaystack at any point during bending.

In an embodiment, the device 10 is bendable about at least one axis inthe bending region 23. This axis can be, for example, the axis of ahinge. At least one of the fastening components 222 and at least one ofthe fastening areas 221 are positioned within 2 centimeters from thebending region 23 and opposite to each other. Since the display stack 21can be likely to detach near the bending region 23, this embodiment canhave an effect of reliable fastening the stack 21 near the bendingregion 23. In an embodiment, the body 22 and the stack 21 are bendablemore than 90 degrees. This provides substantially a foldable device.

The body 22 may optionally comprise a casing 24, as shown in FIG. 2. Thecasing 24 can comprise the bending region 23 of the body 22 and enclosethe body 22 and the display stack 21 at least from the bottom and twoopposite sides. The casing 24 may also include a frame which encloses atleast two edges of the stack 21. The frame is not shown on the figurebut could be, for example, a stripe on the top parts of the casing 24covering its edges and extending slightly over the window layer 210.This can prevent the stack 21 from moving vertically. In an embodiment,the casing and the frame comprise metal and/or plastic.

The terms ‘top’ and ‘bottom’ are used for clarity and relate to thepositioning on the figures only. The bottom supporting layer 212 may bepositioned on any geometric side of the device 10.

Active layers 212 of the display stack 21 may comprise an active displaylayer and an active touch sensing layer, for example if the device 10 isa bendable touch screen device. One of the layers of the display stack21 may also be a polarizing layer, for example if the display stack isan LCD (Liquid Crystal Display) stack. In an embodiment, layers of thedisplay stack 21 are fixed to each other and to the window layer 210 byan optically clear adhesive, such as LOCA (liquid optically clearadhesive). Layers of the display stack 21 are thereby laminated to eachother with a transparent adhesive. On FIG. 2, the adhesive isschematically illustrated as a dotted filling between layers of thestack 21.

The term ‘bendable’ used herein includes both a bending radius that islarge with respect to the display thickness and also small with respectto the display thickness. For example, bendable displays includedisplays that are 3 mm thin and may operate in a bent form in which thebend radius is 5 cm or less than 1 mm. In the latter bend radius of lessthan 1 mm, the display may be described as foldable, similar to a foldedsheet of paper. Furthermore, ‘bendable’ refers to dynamic bending, andincludes both elastic and inelastic plasticity. Embodiments of thedevice 10 can apply to display devices as well as any other deviceswhich include displays. The display may be, for example, a flexibleorganic light emitting diode (OLED) display, an LCD or an electronicpaper display.

The body 22 of the device 10 may comprise other elements required foroperation of the device 10. For example, if the device 10 is anelectronic device, the body 22 of the device may comprise elements suchas a controller, a processing unit, and a memory.

According to an embodiment, the display stack 21 has an electricconnection with the body 22. The electric connection can be implementedas a flexible connector, for example via a flexible printed circuit(FPC), to the hardware of the device 10 located in the body 22. Theconnection can be implemented inside the device 10 and made with one ofthe active layers 210 of the display stack 21. The body 22 may have anopening which allows the flexible connector to extend through theopening into the space between the display stack 21 and the body 22, andmove without damage or loss of connection inside that space when thedevice 10 is bent.

In an embodiment, thickness of the display stack may be between 0.1 and0.5 millimeters.

FIGS. 3A-3C illustrate an embodiment wherein the movable connection inthe device 10 is implemented using studs and grooves. According to theembodiment, at least one fastening area 221 of the supporting layer 211comprises a stud 31, and at least one fastening component 222 of thebody 22 comprises a groove 33 shaped to be operable in a movableconnection with at least one of the studs 31. FIG. 3A is an angled viewof the unattached supporting layer 211 with a stud 31 schematicallytaking place of the fastening area 221 according to an embodiment. FIG.3B shows a side view of the same, wherein the stud is welded 34 to thesupporting layer 211. The stud 31 can be made of stainless steel, whichin combination with the supporting layer 211 comprising stainless steelprovides a possibility to use welding. The stud 31 can also be made ofany other suitable material, such as metal or plastic. FIG. 3C shows thestud 31 which is configured to be inserted into a groove 33 on the body22. In an embodiment, the groove 33 is shaped as a keyhole to provide amovable connection with the stud 31. The groove 33 may provide aslightly larger space than the radius of the stud 31, allowing the stud31 slight movement in all horizontal directions.

As it is clear to a skilled person, the fastening areas 221 comprisingstuds 34 and fastening components 222 comprising grooves 33 may alsocomprise other fastening elements.

In an embodiment, at least one fastening area 221 of the supportinglayer 211 comprises a magnetic element, and at least one fasteningcomponent of the body 22 comprises a magnetic element configured to beoperable in a movable connection with at least one magnetic element ofthe supporting layer. The magnetic elements may be areas of magneticmaterial on the supporting layer 211. In an embodiment, the supportinglayer 211 comprises magnetic material at least in the fastening areas221. The supporting layer 211 may also be made of magnetic material.This allows using a thin supporting layer 211. In embodiments presentedbelow referring to FIGS. 3D-3E, the magnetic elements are shown separatefrom the supporting layer 211 for clarity purposes only. As it is clearto a skilled person, similar implementations are possible wherein thesupporting layer 211 comprises magnetic areas which do not extendoutside the layer.

FIGS. 3D and 3E illustrate various embodiments with magnetic elementsmentioned above. These figures are side views of the supporting layer211 on the bottom of the display stack 21. The magnetic elements maycomprise neodymium or other rare earth materials, which can providestrong attraction enabling use of small magnets which can be insertedlocally. According to an embodiment, the magnetic elements comprise softrubber and have a prolonged shape. The soft rubber comprising magneticmaterial can be used on areas of bending.

FIG. 3D shows a magnetic element 34 as part of the fastening area of thesupporting layer 211. On this figure, the magnetic element 34 is shapedas a stripe and may comprise a Halbach array. In an embodiment, thethickness of the magnetic element 34 is between 0.3 millimeters and 1millimeter. The magnetic field lines are illustrated by dashed lines onthe figures. FIG. 3E shows a magnetic element 34 as part of thefastening area of the supporting layer 211. The stripe 34 may comprisesoft rubber and magnetic material. The soft rubber provides increasedflexibility and reduced brittleness when the stripe 34 is bent.

FIG. 3E shows alternative embodiments of magnetic elements 34 as part ofthe fastening area 221 of the supporting layer 211. The elements 34 inthis embodiment can be smaller and have, for example, a round shape. Thesupporting layer 211 on the left part of FIG. 3E comprises a magneticcore. The magnetic core can comprise soft iron or other suitablematerials. The magnetic core can serve to confine the magnetic field andprevent undesired exposure of parts of the device 10, as well asexternal objects such as credit cards, to said field. The magnetic coreelement 36 can also be attached to the magnet 34 itself, along with anadditional magnetic core element 35, as show on the right side of FIG.3E. When the magnetic field is limited by the magnetic core 36, 37,attraction force can increase since the magnetic field is concentratedinto the soft iron. Increased force can allow using smaller magnets andthereby saving space and weight. It is clear to a skilled person thatthe structure is not limited by what it presented on the drawings and inparticular the embodiments shown on FIG. 3E are presented together forillustrative purposes only. Any combination of magnetic elements andmagnetic cores can be used.

In an embodiment, magnetic elements 34 are magnets. Magnets can have astrong enough attraction force to keep the display stack 21 attached tothe body 22, yet maintain flexibility on the joint and a movableconnection.

According to an embodiment, the supporting layer 211 of the displaystack 21 may comprise a bending region itself, as illustrated on FIG. 4.This figure is an angled view of a display stack 21 wherein the activelayers together with a window layer 210 are separated from thesupporting layer 211, and a hinge is exposed on the supporting layer211.

FIG. 5A illustrates an embodiment with a possible distribution offastening components 222 on the body 21, and the fastening areas on thesupporting layer 211 (flipped over in relation to the orientation or thebody 21 for demonstration purposes). This distribution can be used withstuds and magnets.

FIG. 5B shows two embodiments with distributions of magnetic elements51, 52 across the body 22. This illustrates that the shape, size andpositioning of the magnets 51 can vary and be tailored to a particularbending device. The circular holes in a magnetic shield 52 can providereduced weight of the body 22.

In an embodiment, the fastening areas 221 and fastening components 222comprise gel configured to provide a movable connection. In anembodiment, the display stack 21 is movably fixed to the body 22 withcombination of the above embodiments. The display stack 21 may also bepartially fixed to the body 22 by an adhesive, providing a movableconnection only in certain areas of the device 10. The adhesive may beused, for example, to connect the display stack 21 to the bending region23 of the body 21, since the relative movement may not occur around thebending region 23.

The device 10 according to any of the above embodiments may beimplemented as a portable electronic device, for example a mobile phone,smart watch, tablet or laptop.

The above embodiments can provide a movable connection of the displaystack to the body of an electronic device. This can have a technicaleffect on its repeatable foldability without buckling or other physicaldeformations of the display stack. A further effect can be that thedevice can be resistant to fall damage due to the “floating” connectionwhich can absorb shock. The resulting device can also be easy todisassemble e.g. for maintenance.

Devices according to any of the above embodiments can be used inflexible electronic devices such as mobile phones, tablets, foldablelaptop computers, e-readers and other devices. The devices may beembedded in or attached to a bendable or foldable electronic system.

FIG. 6 illustrates a method for assembling a bendable electronic deviceaccording to an aspect. The bendable electronic device may be a bendabledisplay device. The method comprises providing 61 a display stack whichcomprises a supporting layer on the bottom, wherein the supporting layercomprising one or more studs. A body which comprises a bending regionand keyhole-shaped grooves is then provided at 62. The method furthercomprises movably fixing 63 the display stack to the body by insertingthe studs into the grooves.

FIG. 7 illustrates a method for assembling a bendable electronic deviceaccording to an aspect. The bendable electronic device may be a bendabledisplay device. The method comprises providing 71 a display stack whichcomprises a supporting layer on the bottom, wherein the supporting layercomprising one or more magnetic areas. A body which comprises a bendingregion and magnetic elements is then provided at 72. The method furthercomprises movably fixing 73 the display stack to the body by bringingthe magnetic elements into proximity or physical contact with themagnetic areas. The magnetic areas may comprise separate magneticelements rigidly attached to the supporting layer.

The methods described above may have an effect of simplified assemblywherein adhesives are not necessary. A further effect is the ease ofmaintenance, due to the movable connection being more easily removed andthen restored; for devices assembled according to the above methods.

The steps of the methods described herein may be carried out in anysuitable order, or simultaneously where appropriate. Additionally,individual blocks may be deleted from any of the methods withoutdeparting from the spirit and scope of the subject matter describedherein. Aspects of any of the examples described above may be combinedwith aspects of any of the other examples described to form furtherexamples without losing the effect sought.

The methods described herein may be performed by software in machinereadable form on a tangible storage medium e.g. in the form of acomputer program comprising computer program code means adapted toperform all the steps of any of the media include computer storagedevices comprising computer-readable media such as disks, thumb drives,memory etc. and do not include propagated signals. Propagated signalsmay be present in a tangible storage media, but propagated signals perse are not examples of tangible storage media. The software can besuitable for execution on a parallel processor or a serial processorsuch that the method steps may be carried out in any suitable order, orsimultaneously.

According to an aspect, an electronic device is disclosed. The devicecomprises: a body comprising a bending region and a flexible displaystack comprising at least one active layer and a supporting layerpositioned on the bottom of the flexible display stack. The supportinglayer of the flexible display stack comprises one or more fasteningareas; the body comprises one or more fastening components; and one ormore fastening components of the body are configured to be operable in amovable connection with one or more fastening areas of the flexibledisplay stack.

According to an embodiment, the device is bendable about at least oneaxis in the bending region, and one or more fastening components of thebody and one or more fastening areas of the flexible display stack arepositioned within 2 centimeters from the bending region and opposite toeach other.

According to an embodiment, alternatively or in addition to the aboveembodiments, at least one fastening area of the supporting layercomprises one or more studs, and at least one fastening component of thebody comprises one or more grooves shaped to be operable in a movableconnection with one or more studs.

According to an embodiment, in addition to the above embodiment, the oneor more studs comprise stainless steel and are welded to the one or morefastening areas of the supporting layer.

According to an embodiment, the one or more grooves have a keyholeshape.

According to an embodiment, alternatively or in addition to the aboveembodiments, at least one fastening area of the supporting layercomprises a magnetic element, and at least one fastening component ofthe body comprises a magnetic element configured to be operable in amovable connection with at least one magnetic element of the supportinglayer.

According to an embodiment, in addition to the above embodiment, one ormore magnetic elements of the supporting layers and one or more magneticelements of the body comprise neodymium. Alternatively or additionally,one or more magnetic elements of the supporting layers and one or moremagnetic elements of the body may comprise soft rubber and have aprolonged shape.

According to an embodiment, in addition to the above embodiments, thesupporting layer comprises a magnetic core between the magnetic elementsand the other layers of the flexible display stack.

According to an embodiment, alternatively or in addition to the aboveembodiments, the body comprises a casing, the casing comprises thebending region of the body, and the casing encloses the body and thedisplay stack at least from the bottom and two opposite sides.

Additionally to the above embodiment, the casing may also comprise aframe, wherein the frame encloses at least two edges of the displaystack.

According to an embodiment, alternatively or in addition to the aboveembodiments, the supporting layer comprises stainless steel.

According to an embodiment, alternatively or in addition to the aboveembodiments, the supporting layer comprises a bending region.

In an embodiment, the bending region of the body and the bending regionof the supporting layer comprise hinges.

According to an embodiment, alternatively to the above embodiment, thebending region of the body and the bending region of the supportinglayer comprise elastic components.

According to an embodiment, alternatively or in addition to the aboveembodiments, the flexible display stack and the body are bendable morethan 90 degrees.

According to an embodiment, alternatively or in addition to the aboveembodiments, the flexible display stack comprises an active organiclight-emitting diode display, an active touch sensing layer and a windowlayer.

According to an embodiment, alternatively or in addition to the aboveembodiments, the device is implemented as a portable electronic device.

According to an aspect, a method for assembling a bendable electronicdevice comprising a display is disclosed. The method comprises:providing a flexible display stack which comprises a supporting layerpositioned on the bottom, the supporting layer comprising one or morestuds; providing a body which comprises a bending region and one or moregrooves which have a keyhole shape; and fixing the flexible displaystack to the body by inserting the studs into the grooves.

According to an aspect, a method for assembling a bendable electronicdevice comprising a display is disclosed. The method comprises:providing a flexible display stack which comprises a supporting layerpositioned on the bottom of the display stack, the supporting layercomprising one or more magnetic areas; providing a body which comprisesa bending region and one or more magnetic elements configured to beattracted to the magnetic areas of the supporting layer; and fixing theflexible display stack to the body by bringing the magnetic elementsinto proximity or physical contact with the magnetic areas.

Any range or device value given herein may be extended or alteredwithout losing the effect sought, as will be apparent to the skilledperson.

Although the subject matter has been described in language specific tostructural features and/or methodological acts, it is to be understoodthat the subject matter defined in the appended claims is notnecessarily limited to the specific features or acts described above.Rather, the specific features and acts described above are disclosed asexample forms of implementing the claims.

It will be understood that the technical effects described above mayrelate to one embodiment or may relate to several embodiments. Theembodiments are not limited to those that solve any or all of the statedproblems or those that have any or all of the stated benefits andadvantages. It will further be understood that reference to ‘an’ itemrefers to one or more of those items.

The term ‘comprising’ is used herein to mean including the method blocksor elements identified, but that such blocks or elements do not comprisean exclusive list and a method or device may contain additional blocksor elements.

It will be understood that the above description is given by way ofexample only and that various modifications may be made by those skilledin the art. The above specification, embodiments and data provide acomplete description of the structure and use of exemplary embodiments.Although various embodiments have been described above with a certaindegree of particularity, or with reference to one or more individualembodiments, those skilled in the art could make numerous alterations tothe disclosed embodiments without departing from the spirit or scope ofthis specification.

The invention claimed is:
 1. An electronic device comprising: a bodycomprising a first bending region; and a flexible display stackcomprising at least one active layer and a supporting layer positionedon a bottom of the flexible display stack, the flexible display stackcomprising a second bending region; wherein: the supporting layer of theflexible display stack comprises one or more fastening areas; the bodycomprises one or more fastening components; and one or more fasteningcomponents of the body are configured to be operable in a movableconnection with one or more fastening areas of the flexible displaystack.
 2. A device as claimed in claim 1, wherein the device is bendableabout at least one axis in the first bending region, and one or morefastening components of the body and one or more fastening areas of theflexible display stack are positioned within 2 centimeters from thefirst bending region and opposite to each other.
 3. A device as claimedin claim 1, wherein at least one fastening area of the supporting layercomprises one or more studs, and at least one fastening component of thebody comprises one or more grooves shaped to be operable in a movableconnection with one or more studs.
 4. A device as claimed in claim 3,wherein the one or more studs comprise stainless steel and are welded tothe one or more fastening areas of the supporting layer.
 5. A device asclaimed in claim 3, wherein the one or more grooves have a keyholeshape.
 6. A device as claimed in claim 1, wherein at least one fasteningarea of the supporting layer comprises a first magnetic element, and atleast one fastening component of the body comprises a second magneticelement configured to be operable in a movable connection with at leastone magnetic element of the supporting layer.
 7. A device as claimed inclaim 6, wherein one or more magnetic elements of the supporting layerand one or more magnetic elements of the body comprise neodymium.
 8. Adevice as claimed in claim 6, wherein one or more magnetic elements ofthe supporting layer and one or more magnetic elements of the bodycomprise soft rubber and have a prolonged shape.
 9. A device as claimedin claim 6, wherein the supporting layer comprises a magnetic corebetween the first and second magnetic elements and other layers of theflexible display stack.
 10. A device as claimed in claim 1, wherein: thebody comprises a casing, the casing comprises the first bending regionof the body, and the casing encloses the body and the flexible displaystack at least from the bottom and two opposite sides.
 11. A device asclaimed in claim 10, wherein the casing also comprises a frame, whereinthe frame encloses at least two edges of the flexible display stack. 12.A device as claimed in claim 1, wherein the supporting layer comprisesstainless steel.
 13. A device as claimed in claim 1, wherein thesupporting layer comprises a third bending region.
 14. A device asclaimed in claim 13, wherein the first bending region of the body andthe third bending region of the supporting layer comprise hinges.
 15. Adevice as claimed in claim 13, wherein the first bending region of thebody and the third bending region of the supporting layer compriseelastic components.
 16. A device as claimed in claim 1, wherein theflexible display stack and the body are bendable more than 90 degrees.17. A device as claimed in claim 1, wherein the flexible display stackcomprises an active organic light-emitting diode display, an activetouch sensing layer and a window layer.
 18. A device as claimed in claim1 implemented as a portable electronic device.
 19. A method forassembling a bendable electronic device comprising a display, the methodcomprising: providing a body comprising a first bending region and oneor more grooves; providing a flexible display stack which comprises asecond bending region and a supporting layer positioned on a bottom ofthe flexible display stack, the supporting layer comprising one or morestuds; and fixing the flexible display stack to the body by insertingthe one or more studs into the grooves.
 20. A method for assembling abendable electronic device comprising a display, the method comprising:providing a flexible display stack which comprises a first bendingregion and a supporting layer positioned on a bottom of the flexibledisplay stack, the supporting layer comprising one or more magneticareas; providing a body which comprises a second bending region and oneor more magnetic elements configured to be attracted to the magneticareas of the supporting layer; and fixing the flexible display stack tothe body by bringing the magnetic elements into proximity or physicalcontact with the magnetic areas.